Acoustics, vocal behavior and putative sound producing mechanism in Amur sleeper Perccottus glenii
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1
Faculty of Science, University of Zagreb, Croatia
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2
Università Ca' Foscari, Italy
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3
University of Liège, Belgium
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4
University of Belgrade, Serbia
Gobioids (order Gobiiformes) are vocal fish group with four sound types being already described during aggressive or reproductive interactions in 24 species. In the past, attention has been mostly dedicated to studying acoustic communication in gobiids and gobionellids, while in other gobioid groups have been neglected. Therefore, the aim of this study was to record and describe the acoustic signals produced by odontobutid Amur sleeper Perccottus glenii under experimental conditions, during reproductive interactions (courtship and pre-spawning), and to provide insight into the anatomical basis of the putative sonic mechanism. During this study, we recorded two different sound types, thumps, and tonal sounds. Thumps were low-frequency sounds (< 100 Hz) produced by males during the courtship and pre-spawning phases of reproductive interactions. They were frequently organized in long trains (thump burst) which were composed of approximately five thumps and lasting over ten seconds. Conversely, tonal sounds were short vocalizations (< 100 ms) produced only during courtship interactions, characterized by a sinusoidal waveform and a single frequency peak. In addition, anatomical examination focusing on the pectoral girdle (known to participate in sound emission process) identified the muscles that could be responsible for sound production. The levator pectoralis muscle, originating on the neurocranium and attaching to the cleithral bone, is separated into three bundles: a pars lateralis superficialis, pars lateralis profundus and a pars medialis. Our results deepen the knowledge about gobioid vocal behavior and underline the importance of acoustic communication within this group of fish. Odontobutidae is a sister group to rest of the gobioids and therefore our results have a significant impact on future comparative studies dealing with sound production and acoustic communication.
Acknowledgements
The authors are grateful to A. Špelić, D. Hamer and K. Horvat for their kind and useful assistance during the laboratory audio-video recordings, to S. Sviben for initial manuscript revision and L. Zanella for proofreading the manuscript. In addition, we thank M. Vučković for figure preparation regarding behavioral acts.
Keywords:
Amur sleeper,
Acoustics,
vocal behavior,
tonal sounds,
thumps
Conference:
XVI European Congress of Ichthyology, Lausanne, Switzerland, 2 Sep - 6 Sep, 2019.
Presentation Type:
Poster
Topic:
MORPHOLOGY, ONTOGENY AND PALAEONTOLOGY
Citation:
Horvatić
S,
Malavasi
S,
Parmentier
E,
Marčić
Z,
Buj
I,
Mustafić
P,
Skorić
S,
Smederevac-Lalić
M and
Zanella
D
(2019). Acoustics, vocal behavior and putative sound producing mechanism in Amur sleeper Perccottus glenii.
Front. Mar. Sci.
Conference Abstract:
XVI European Congress of Ichthyology.
doi: 10.3389/conf.fmars.2019.07.00082
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Received:
21 Jun 2019;
Published Online:
14 Aug 2019.
*
Correspondence:
Mrs. Sven Horvatić, Faculty of Science, University of Zagreb, Zagreb, Zagreb, 10000, Croatia, sven.horvatic@biol.pmf.hr